Worlds to Kill

From Author Wars - https://authorwars.com/books/worlds-to-kill-770989.html

Overview:

Title: Worlds to Kill
Author: Jack Gaughan
Year: 1968
Type: Interior Art

Editions/Publications:

Unknown. If, March 1968 (Unknown, Jack Gaughan, Galaxy Publishing Corporation, $0.60, 164 pages, digest, MAGAZINE)